From owner-freebsd-stable Fri Feb 9 2:14:11 2001 Delivered-To: freebsd-stable@freebsd.org Received: from cs.huji.ac.il (cs.huji.ac.il [132.65.16.10]) by hub.freebsd.org (Postfix) with ESMTP id 8163D37B69B; Fri, 9 Feb 2001 02:13:49 -0800 (PST) Received: from sexta.cs.huji.ac.il ([132.65.16.13] ident=danny) by cs.huji.ac.il with esmtp (Exim 3.20 #1) id 14RAYf-0004Tu-00; Fri, 09 Feb 2001 12:13:41 +0200 X-Mailer: exmh version 2.2 06/23/2000 with nmh-0.24 To: Paul Saab Cc: John Baldwin , Terry Lambert , freebsd-stable@FreeBSD.org, hackers@FreeBSD.org Subject: Re: Really odd "BTX halted" problem booting - PXE/diskless In-reply-to: Your message of Wed, 7 Feb 2001 03:16:37 -0800 . Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Fri, 09 Feb 2001 12:13:40 +0200 From: Danny Braniss Message-Id: Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG In message <20010207031637.A32676@elvis.mu.org>you write: }It its the bios disk probe that is causing the machine to fault. I can now confirm that it's a divide by zero in the Adaptec BIOS GRRRRRR. (in biosdisk, when 'probing' the adaptec) and it happens on a AIC 7899, but works ok on some other ADAPTECs. the problem is nasty because it's not easy to zero out the first block of the disk if you can't get the os working :-) }I suppose you really dont need to probe the disks when you are netbooting. i got the pxeboot not to check the disks but then the kernel stepped on it :-( is there a way to prevent BTX to halt if the 'caller' expects a div/zero? (in the days of the PDP/11 i could trap such things, print a message, and continue). danny To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message